Document Detail


Patient dose in cardiac radiology.
MedLine Citation:
PMID:  19196617     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
INTRODUCTION: In diagnostic and interventional cardiology procedures performed with the use of X-ray diagnostic imaging systems, the long fluoroscopy time and the large number of cine projections, as well as the repetition of the procedure due to the recurrence of the lesion--a common event--result in a high locally delivered skin dose, which may even lead to patient skin necrosis. The purpose of this study was to collect information in order to estimate the patient dose during coronary angiography and coronary angioplasty procedures, using the dose-area product measuring system of the X-ray angiographic machine. METHODS: Dose-area product (DAP), fluoroscopy time, number of sequences and frames per sequence were collected for each of 108 coronary angiography and 101 coronary angioplasty procedures, using the dedicated X-ray machine of the hospital's haemodynamic department, where more than 3000 procedures are performed per year. RESULTS: The median values of DAP were 19.96 and 40.17 Gy.cm(2) for coronary angiography and angioplasty, respectively; fluoroscopy times were 7.7 and 23.4 minutes; and the numbers of frames were 457 and 641, respectively. There was a strong correlation between DAP and fluoroscopy time, the number of frames per sequence, and hence the cine recording time. CONCLUSIONS: The entrance skin dose delivered to the patient in the haemodynamic department was lower than that of other studies, although the mean fluoroscopy time per patient was longer. The practices in use satisfy the diagnostic reference levels as far as DAP values and number of frames per patient are concerned, but not with regard to fluoroscopy time. We did not find the correlation between doctors' experience and DAP values reported in other studies, as we did not take into account the complexity index of the lesion.
Authors:
Andreas I Stratis; Prodromos L Anthopoulos; Isidoros P Gavaliatsis; Georghios P Ifantis; Anastasios I Salahas; Ioannis P Antonellis; Antonios G Tavernarakis; Michael I Molfetas
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Hellenic journal of cardiology : HJC = Hellēnikē kardiologikē epitheōrēsē     Volume:  50     ISSN:  1109-9666     ISO Abbreviation:  -     Publication Date:    2009 Jan-Feb
Date Detail:
Created Date:  2009-02-12     Completed Date:  2009-03-31     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101257381     Medline TA:  Hellenic J Cardiol     Country:  Greece    
Other Details:
Languages:  eng     Pagination:  17-25     Citation Subset:  IM    
Affiliation:
Medical Physics Laboratory, Evangelismos General Hospital, Athens, Greece.
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MeSH Terms
Descriptor/Qualifier:
Angioplasty, Transluminal, Percutaneous Coronary* / adverse effects
Cohort Studies
Coronary Angiography* / adverse effects
Coronary Stenosis / radiography*,  therapy
Female
Fluoroscopy / adverse effects
Humans
Male
Radiation Dosage*
Radiation Monitoring*
Risk Assessment
Skin / radiation effects*
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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